Johnnie Cochran (Courtney B. Vance, pictured) will flip the trial of O.J. Simpson (Cuba Gooding, Jr.) on its head during episode 4 of "The People v. O.J. Simpson." Photo: FX

Now that the Dream Team has been assembled, Robert Shapiro (John Travolta) and his band of high profile lawyers will come up with a compelling case hoping to free their client, O.J. Simpson (Cuba Gooding, Jr.), in episode 4 of “The People v. O.J. Simpson.” But according to the synopsis of the upcoming FX installment, titled “100% Not Guilty,” it will be Johnnie Cochran (Courtney B. Vance) — a recent addition to the team — that will be the one to bring “an energy that transforms” the trial.

In episode 3, Marcia Clark (Sarah Paulson) was certain that she had enough evidence to put O.J. behind bars for the deaths of Nicole Brown Simpson and Ronald Goldman. However, as the installment continued, Marcia watched helplessly as her evidence lost its credibility when her key witnesses began speaking to the press.

Marcia then realized that her full proof plan of proving O.J. murdered his ex-wife and her friend was a little more complicated than she thought — even more so when she found out Johnnie had teamed up with Robert. “That mother f—ker,” she said after learning the news in the paper.

What makes Johnnie’s involvement in the case even more complex is that he’ll now be going head-to-head with his protégé Christopher Darden (Sterling K. Brown) who also just happened to join the case ... on the opposing side. And from a sneak-peak look at the upcoming episode, it’s evident that the two friends will continuously butt heads throughout the trial.

“I’m not trying to be respectful,” Johnnie is seen saying to Christopher in a promo vide for episode 4. “I’m trying to win.”

Meanwhile, Faye Resnick (Connie Britton) will publish a tell-all book, titled “Nicole Brown Simpson: The Private Diary of a Life Interrupted,” that will only complicate the court proceedings.